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Byju's Answer
Standard XII
Biology
Restriction Enzyme
How many turn...
Question

How many turns will be present approximately in a double stranded DNA molecule with 6390 base pairs?

A
639
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B
63.9
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C
6.39
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D
31.95
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Solution

The correct option is A 639
In a DNA double helix, approximately 10 base pairs are present in 1 turn. Thus, 6390 base pairs will be present in
1/10 x 6390 = 639 turns.

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